TOPDON ONE Bidirectional Scan Tool | 10.1-inch Touchscreen, J2534 Pass-Thru, ECU Coding

Meet TOPDON ONE: A versatile diagnostic companion

Engineered for professional workshops, TOPDON ONE blends speed, clarity, and expandable capabilities in a single portable device. The 10.1 inch touchscreen delivers a crisp, responsive feel, while dual WiFi keeps the connection steady during long sessions.

With J2534 pass-thru support, it can work with OEM software, expanding your in-house diagnostic and coding options without multiple tools. The OE topology mapping provides a real-time view of the ECU network, allowing users to pan, zoom, and highlight modules for precise fault finding.

Powerful guidance at your fingertips

The Topfix AI Assistant taps into millions of fault codes and wires you to the likely causes, symptoms, and repair paths, aided by professional wiring diagrams for each code. This can help cut diagnostic time while preserving accuracy.

Beyond code reading, TOPDON ONE unlocks 50+ service functions that cover common maintenance and calibration tasks such as ADAS calibration, DPF regen, TPMS reset, ABS bleed, and throttle adaptation. This broadens your service menu and supports premium labor opportunities.

Code, customize, and expand your capabilities

ECU coding and hidden feature activation are available for select brands, enabling module replacement, feature customization, and safe backup or restore of settings. Expanded guidance for VW and Audi vehicles further aids disassembly and torque specs when needed.

With AutoVIN and full-system bidirectional scanning, the tool automatically identifies the vehicle and tests components like injectors and lights, helping you validate repairs reliably and efficiently.

Simple ownership and ongoing value

Your first year of software updates comes at no extra cost. After that, choose a renewal plan that fits your business: 1 year or 2 years. Ongoing updates and hardware warranty help protect your workflow.

Note: Vehicle-specific features may vary by vehicle and software availability.

Key benefits at a glance

• Stable wireless connectivity paired with a large, responsive touch display for smoother workflows
• Dealer-grade coding options via J2534 pass-thru with OEM software access
• Real-time topology mapping for precise module-level diagnostics

• Extensive fault-code library and wiring diagrams with AI-assisted guidance
• Broad service coverage including ADAS, DPF, TPMS, ABS, and throttle adaptations
• Brand-specific ECU coding and hidden feature activation for select makes

Designed for efficiency and growth

Guided functions for VW and Audi help technicians with step-by-step procedures, while SGW access enhances newer FCA, Nissan, and VAG capabilities. AutoVIN and bidirectional checks speed up repairs and improve confidence in fixes.